However, because oral medications must pass through the digestive system, to have the same efficacy as IV medications oral antibiotics must have high âbioavailabilityâ â the percentage of the drug that reaches the blood. Drugs administered via PICC lines have, by definition, 100 percent bioavailability.
A: Bactrim is a type of antibiotic used to treat a range of bacterial infections in the body according to WebMD. Physicians prescribe Bactrim to treat certain types of sexually transmitted diseases, urinary tract infections, respiratory illnesses, and various other infections.
Save. Bactrim, an antibiotic medication, is prescribed to treat certain types of urinary tract infections. Bactrim should be taken with plenty of fluids and works best when there is a constant amount in your blood stream. It is important to not miss any doses.